81661208

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{1163}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 156720960

約数和(自身を除く): 75059752

約数列:

[1, 2, 4, 8, 67, 131, 134, 262, 268, 524, 536, 1048, 1163, 2326, 4652, 8777, 9304, 17554, 35108, 70216, 77921, 152353, 155842, 304706, 311684, 609412, 623368, 1218824, 10207651, 20415302, 40830604, 81661208]

約数ペア:

[(1, 81661208), (2, 40830604), (4, 20415302), (8, 10207651), (67, 1218824), (131, 623368), (134, 609412), (262, 311684), (268, 304706), (524, 155842), (536, 152353), (1048, 77921), (1163, 70216), (2326, 35108), (4652, 17554), (8777, 9304)]